Conceptualize a comprehensive mood board that portrays the unique aspects of an 'Event'. This board should feature arrays of diverse elements: invitations in different appealing styles, arrays of festive decorations across various cultures, samples of event-specific attire such as elegant evening gowns for women and tailored suits for men, a smattering of color palettes often associated with joyous proceedings, images of delicious and aesthetically appealing food and drink that might be served at such gatherings, and an assortment of venues demonstrating diverse architectural styles and atmospheres from a cozy barn to a sleek city skyscraper.